The total number of card room permits which may be issued under the authority of this article, other than club permits under Section 6-50, shall not exceed one for a total of seven card tables within the city. (Ord. No. 1507 (NCS), § 2; Ord. No. 1983 (NCS), § 1(J); Ord. No. 2364 (NCS), § 1: Ord. No. 2418 (NCS), § 1.)